26 Jul
2006
26 Jul
'06
3:34 p.m.
Hi,
Thanks for your kind reply.
Unfortunately I couldn't find any implementation, but in the thread you submitted,
seems that Mr. Martin Regner has made an application to do what I want to achieve.
Is there a way to enter that forum to contact him ?
http://www.ethereal.com/lists/ethereal-dev/200309/msg00152.html
Thanks,
ilker
-----Original Message-----
From: Andres [mailto:andres@telesip.net]
Sent: Tuesday, July 25, 2006 5:52 PM
To: İlker Aktuna (Koç.net); serusers(a)iptel.org
Subject: Re: [Serusers] decoding g729 encoded rtp streams
İlker Aktuna (Koç.net) wrote:
Hi,
Thanks for the detailed explanation. It's really useful.
I'm trying to automate this whole process. All tools except Ethereal (tcpdump,
rtpdump, voiceage decoder) are command line tools that can be used in a batch/shell
script.
How can I export rtp stream without using Ethereal, or from command line ?
is there a way ?
There probably is a way but I have not have the need to investigate.
You can try googling around and you will find related discussions like:
http://www.ethereal.com/lists/ethereal-dev/200309/msg00152.html
Thanks,
ilker
-----Original Message-----
From: Andres [mailto:andres@telesip.net]
Sent: Monday, July 24, 2006 8:18 PM
To: İlker Aktuna (Koç.net)
Cc: serusers(a)iptel.org
Subject: Re: [Serusers] decoding g729 encoded rtp streams
İlker Aktuna (Koç.net) wrote:
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Hi,
Thanks for the information.
Actually, I downloaded it but couldn't find how to export rtp payload.
Does rtpdump read capture files recorded with Ethereal/tcpdump ?
(in which format should I save the file?)
Btw, there is a Windows sniffer named "Cain & Abel" this one decodes g729.
Thanks,
ilker
First you export the RTP data from within Ethereal like this:
1. Open Capture
2. Click on Analyze->Statistics->RTP Streams->Show All 3. Select the stream you
want to export 4. Click 'Save As'
5. Then feed that file into rtpdump like the below example 'trace.rtp'.
Here is the command line:
rtpdump -F payload -f trace.rtp -o file.out
file.out will contain just the payload which can then be decoded.
>-----Original Message-----
>From: Andres [mailto:andres@telesip.net]
>Sent: Friday, July 21, 2006 10:53 PM
>To: İlker Aktuna (Koç.net)
>Cc: serusers(a)iptel.org
>Subject: Re: [Serusers] decoding g729 encoded rtp streams
>
>İlker Aktuna (Koç.net) wrote:
>
>
>
>>Hi,
>>
>>I know that there are licence and patent issues but is it possible to
>>decode g729 encoded rtp streams with any software ?
>>I have licenced Eybeam softphone with g729 support. But it can only
>>decode streams in a conversation.
>>I just need to decode streams recorded with tcpdump/ethereal.
>>
>>Once I had used a software with this feature but then it turned out
>>to be a trojan. I don't remember the name now.
>>Is there any other software ? (or method using Eyebeam ?)
>>
>>Thanks,
>>ilker
>>
>>